​Shiho is a stoic and serious loner that at first disregarded friendship and saw everyone as competition that got in the way of her goals. This is due to her father leaving her family at a young age and having to grow up in a lonely environment having to help her mother take care of the family. Eventually she opens up to others thanks to idols such as Kana breaking her shell allowing her to make friends and see the other idols as part of another family.​